Self-acting spinning-mule.



, R. A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED JULY 14. 1915.

1,200,820. Patented. Oct. 10,1916.

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R. A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED .IULY I4, 1915.

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R: A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED JULY 14. I915.

1 00,820. Patented Oct. 10, 1916.

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R. A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED JULY I4. 1915- d y l I l Patented Oct. 10,1916.

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R. A. DUPONT.

SELF ACTING SPINNlNG MULE.

-APPLICATION FILED JULY 14. 1915.

Patented Oct. 10,1916.

TSHEETS-SHEET 6- r i E R. A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED JULY 14. 1915.

Patented Oct. 10, 1916.

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ATFNT FFTCE.

RENE ABEL DUPONT, 0F PARIS, FRANCE.

SELF-ACTING SPINNING-MULE.

Application filed July 14:, 1915.

To all whom it may concern Be it known that I, RENE: ABEL DUPONT, ofParis, France, have invented certain new and useful Improvements inSelf-Acting Spinning-Mules, of which the following is specification.

This invention relates to improvements in self-acting spinning mules,which improvements have for object to maintain the strictly necessarylength of the reserve of thread which is not wound on each cop of themule when the carriage reaches the end of its inward run.

It will be advisable here to call to mind the fact that the keeping ofthe length of reserve of thread to the amount which is strictlynecessary is very important in spinning machines, because the effect ofthis is on the one hand to prevent the formation of snarls, kinks,knots, and thick places in the threads, which occur if the reserve ofthread is too great, owing to the spindles not having made a sufiicientnumber of revolutions to absorb the whole length of thread producedduring the outward run of the carriage, or on the other hand to preventbreakages of thread which occur if the spindles tend to absorb a lengthof thread greater than that produced by the outward run of the carriage,because they then make too many revolutions.

Figure l of the drawings is a diagrammatic side view on a small scale ofa selfacting spinning mule provided with the improvements forming thesubject of the invention, the machine being shown with the carriage inthe run-in posit-ion and the quadrant being in the correspondingposition. Fig. 2 is a separate side view on a larger scale of themechanism constituting the invention, this figure being extended overtwo sheets, the portion on sheet 3 being distinguished as Fig. 2. Fig. 3is a rear view of this mechanism, partly in vertical section, Fig. 4 isa diagrammatic figure which permits of defining the expression reserveof thread to render the understanding of the system more clear. Figs. 5and 5 show in elevation on a larger .scale than Fig. 2, a general viewof the essential parts of the mechanism. Fig. 6 is a detail plan ofparts shown in Figs. 2 and 5 and on the same scale as Fig. 2. Fig. 7illustrates a detail of Specification of Letters Patent.

Serial No. 39,767.

the driving mechanism for the screw of the quadrant of the mule. Fig. 8is a plan view on the same scale as Fig. 1, of some parts of themechanism in the position they occupy when the carriage has run outabout 20 centimeters. Figs. 9 and 10 show in two views at right anglesto each other a free wheel of the driving mechanism for the screw of thequadrant. Fig. 11 shows on the same scale as Fig. 2 a parallelogrammotion which forms an essential element of the invention. Figs. 12 and13 illustrate a modified con struction of the parallelogram motion. Fig.14 is a separate view' of the mechanism for raising the nut of thequadrant.

To facilitate the understanding of the invention it will be well firstto state shortly the parts played by the counter-faller and the quadrantin a spinning mule and for this purpose to refer to Figs. 1, 2, l and 5.In these figures, 1 indicates the counter-faller, which has to stretchthe threads during the winding up or copping, by acting upwardly againstthem from below; this counter-faller is formed of an iron wire whichextends the whole length of the mule and is supported at intervals byarms 2 fixed on an iron shaft 3.

The length of thread supplied during the run out of the carriage of themule is constant. As the winding up of the thread takes place first ofall on paper tubes which are almost cylindrical, and then continues byconical layers to form the heart or core, the spindles 5 that carry thepaper tube have to turn at variable speeds according as the winding orcopping of the thread is at the commencing stage or is being made uponprogressively increasing diameters. The quadrant 6 of the mule, whichoscillates through 70 to 90, varies the length of the chain 7 whichunwinds from the barrel 10 of the carriage and causes the spindles 5 torotate during the run-in of the carriage. This chain 7 is attached to anut 8 which can be moved by the operation of a screw 9 carried by thequadrant 6. The axle of the bar rel 10 mounted on the carriage carries,a toothed wheel gearing with the pinion 11, the axle of which carrieslong horizontal cylinders or drums 12 connected by cords 13 to the smallpulleys let mounted on the spindles 5. When the carriage of the muleruns. in,

Patented Oct. 10, 1916.

in the direction of the arrow 4, Fig. 1, the barrel 1O unwinds a certainlength of chain, the result of which is to turn 11, 12, 14 and thespindles 5, winding up on these spindles the length of thread which wasproduced by the outward run of the carriage. The length of chain 7 thusunwound from the barrel while the quadrant turns in the direction of thearrow 4 diminishes when the nut to which the chain 8 is attached rises.

At the commencement of the formation of the cops, the point ofattachment of the chain 7 to the quadrant 6 is near the pivotal axis 15of the quadrant, the nut 8 being down at the lo ver part of the screw 9.It is in this position of the chain 7 that this chain has its maximumlength; this corresponds to the. period when the threads are winding onthe paper tubes fitted on the spindles 5. In proportion as the cops areformed and increase in size by the threads wound on them, the nut 8 towhich the chain 7 is attached must be raised in order to diminish thelength of chain; the number of revolutions made by the spindles duringthe inward run of the carriage is thus reduced. If for example thespindles 5 make about revolutions for one run-in-ot the carriage at thecommencement of the copping, they will only make 25 when the body of thecop is being formed, this having then a diameter of about 40millimeters.

Usually the raising of the nut S on the screw 9 is performed by means ofa crank handle 16 which actuates the screw 9. The attendant gives thisscrew 9 about hall a turn after three or tour journeys of the carriageat the commencement of the formation of the heart or foundation of thecops, then every live or six journeys and so on at the end of a longerand longer time .in proportion as the cop is formed.

If the point of attachment of the chain 7 on the quadrant 6 is too high,the length of chain unwound is too short and the spindles 5 do not makea sufficient number of revolutions to take up the entire length ofthread produced by the outward run of the carriage.

Referring to Fig. 4, which is a diagrammatic figure showing only therelative position of the counter-taller 1 carried at the extremity ofthe arms 2, and of the faller 17 carried by bent arms 18, and of spindle5, with a cop in course of formation, the length of thread comprisedbetween the tangent point of the two drawing rollers and the spindle 5when the carriage is completely run in, the thread passing above thecounter-taller l and below the taller 17 to the spindle 5, is called thereserve of thread. The counter-taller arms 2 andthe taller arms 18 areshown in dotted lines in Figs. .1, Q-an'd 5.

lithe spindles do not make a sufficient number of revolutions in theinward run 01" the carriage to wind up the entire length of. threadproduced by the outward run of the carriage, the length of thread 00 7is too great, and this is manifested by too high a position 01 thecounter-taller. If on the other hand the attendant leaves the attachmentnut 8 of the chain '7 on the sector 6 in too low a position, brokenthreads may be caused, because the spindles 5 tend to absorb more threadthan is supplied to them. To avoid this the attendant always has atendency to run his mule with the attach ment of the chain 7 too high.

In existing mules when the carriage has reached the end of its inwardrun, a stop o abutment auses the counter-taller to descend, whichresumes its position of rest be low the lever or sheet of threads; ifthere is then an excess oi thread not absorbed by the spirals oi threadwound 011 the bare spindle from the top of the cop to the top of thespindle this excess of thread is converted into snarls, kinks, knots andthick places.

The mechanism forming the subject of the invention and which has forobject to keep the reserve of thread automatically to the strictlynecessary amount when the carriage has completed. its inward run, iscombined or arranged in such manner as to reduce this reserve, if it istoo great, by causing the attachment nut 8 of the chain 7 to move downon the screw 9 of the quadrant 6, thereby educing the length of chainwhich unwinds from the barrel during the inward run 055 the carriage.Conversely the reserve oi thread is increased, if it becomesinsuflicient, by the nnproved mechanism about to be described and whichis combined with that which diminishes the reserve of thread when thatis necessary.

When the inward run of the carriage takes place with the proper reserveof thread for the spindles 5, a roller 19 (see Figs. 1, 5 and 11) fixedat the end of a special guide 91 fixed on the shaft 3 of thecounter-faller 1 (see the plan, Fig. 8) comes under a curved lever 20,20, without actuating same, because this roller 19 cannot reach the saidlever. But if the attendant has given too much thread by raising to toogreat an eX- tent the nut 8 which attaches the chain 7 to the sector 6,with the result that there has been less thread wound on the spindle andthat the counter-taller 1 is too high at the end of the inward run ofthe carriage, the roller 19 raises the arm 20 of the lever 20 which thenrocks in the direction of the arrow 136 (see Figs. 2, 5 and 11) on thestud 30 which is carried by a support fixed to the frame 31. The rockingof the lever 20 likewise causes an upper lever 22 to be rocked in thesame direction (see Fig. .2) through the medium of the adjustable rodThis adjustment is possible by means of the blocks 32, 32 through whichthe ends of the rod 23 pass and which are rigidly attached to trunnions33, 33, one of which is movable in a slot 34. A pawl 24 in con tact witha fine toothed ratchet wheel 25 moves down, in consequence of thismovement of the lever 22, for a certain number of teeth of the ratchetwheel, proportionately to the extent to which the counterfaller 1 is toohigh. YVhile the counterfaller support has produced this action, thefiat bar or rod 26 which is pivoted to the other end of the lever 22 hasrisen in the direction of the arrow 27 (Fig. 2) stretching the helicalspring 28. This bar 26 rocks the lever 29, by means of an adjustableblock 35 and a pin or stud 36; the left hand arm 29 of the lever 29,which ends in the form of a hook, comes into the depressed positionshown in dotted lines in Figs. 2 and 5. The center of oscillation of thelever 29 is the stud 37 carried by the branch 126 of the support fixedto the frame 31. During this rocking movement of the lever 29, thecarriage has reached the end of its inward run. It then commences a newoutward run, the chain 7 leading to the quadrant 6 of the mule beingthen slack. The end 38 of a rigid arm 39 fixed to the bracket 40 of thecarriage comes against the arm 29' of the lever 29 at the commencementof the outward run of the carriage and causes this arm 29 to rise intoits original position. This causes the descent of the bar 26, therocking of the lever 22 and the driving of the ratchet wheel 25 by thepawl 24.

The ratchet wheel 25 is keyed on the bush 41 of a chain wheel 42; it isthe small movement of rotation given by the ratchet wheel 25 to thewheel 42 which has to be transmitted to the screw 9 of the quadrant 6 toobtain the normal position of the nut 8 for the following run of thecarriage! This can be obtained very well for example by means of chains43, 44, 45, and pinions 46. 47, 48, 49 and 50, these two latter being atthe base of the screw 9 of the Quadrant. The chain 43 connects thewheels 42 and 51. The wheel 51 is cast with a clutch sleeve 52 (see Fig.3) the axle 53 of which rotates in the bush or part 54 of a support 77fixed on the front of the large headstock 55. At the commencement of theoutward run of the carriage, the teeth of the other clutch sleeve 56engage with those of 52; this sleeve 56 can move along a key 53 set inthe axle 53 so that when the clutch sleeves 56. 52 are in enga gement,the rotation of the chain wheel 51 is transmitted bv the shaft 53 to thetoothed wheel 46 which communicates the movement to the chain wheel 57by the pinions 47 48. the pinion 48 being fixed on or integral with theboss of the wheel 57. The chain 44 connects the wheel 57 to the wheel 58fixed on the transmission shaft 59;

this shaft turns in the boss of an adjustable plate 60 (Fig. 2) mountedat the upper part of a support 61 which is itself fixed, near the smallheadstock, to the right hand frame 62. The shaft 59 carries the chain awheel 64 which is connected by the chain 45 to the wheel 65 mounted atthe'end of the shaft 15 which transmits the motion to the screw 9 of thequadrant 6 to shift the attachment nut 8 of the chain 7; this movementis communicated (see the detail, Fig. 7) by the bevel pinion 49 carriedon the end of the shaft 15 which gears with another bevel pinion 50fixed on the lower part of the screw 9 of the quadrant.

The wheel 65 is arranged on the principle of the free wheels well knownin mechanism by their application to bicycles. This wheel 65 is arrangedas shown in detail in Figs. 9 and 10; it comprises one or two internalrings of ratchet teeth 66 with one or two pawls 67 carried by a hubfixed on the shaft 15; springs 67' keep the pawls up againstthe ratchetwheels. This arrangement allows the shaft 15 to turn freely, without thechains 44 and 45 moving during the outward run of the carriage.

The boss or bush 54 of the support 77 (see Fig. 3) which receives theshaft 53 supports rigidly an upper arm 69 which carries a trunnion 70serving for pivoting a lever 71 which passes through the neck of theclutch sleeve 56. The lower end of the lever 71 engages in a cam groove72 (Fig. 6) formed in a slide plate 73, movable in guides 75 cast withthe support 78. On the other hand the slide plate 73 carries a pin 79upon which an arm 80 suspended from a pivot 81 can act. A tappet 85formed by an angle iron fixed to the frame 40 produces the followingefiect when the carriage performs its movement: On the return of thecarriage, the tappet 85 rocks the arm 80, which rises to allow the saidtappet 85 to pass. In the continued return travel of the carriage thetappet 85 comes against an adjustable lug or member 82, fixed to theslide plate 7 3; it carries this lug or member with it until the end ofits stroke (Fig. 5) the effect of this is to drive the slide plate 73and consequently to displace the lower end of the lever 71 laterally inthe slot 72, so that the said lever by pivoting through a certain angleon its axis 70 causes the teeth of the clutch sleeve 56 to engage inthose of the clutch sleeve 52. This engagement of the clutch sleeves 56and 52 is maintained until the carriage in running out causes the tappet85 to come against the suspended lever 80 which rocks and comes againstthe pin 79 which it carries on in its movement. The slide plate 73 thenrecedes, and the lower end of the lever 71 takes the position in theslot 72 which is shown in Fig. 6 and which corresponds to thedisengagement of the clutch sleeves '56 and 52. The spring 89 arrangedoutside the clutch sleeve 52 simply keeps this sleeve against the flange90 of the shaft 53. This spring is compressed when the teeth of the twosleeves are properly in relation to each other. It therefore allows ofthe certain engagement of the clutch members.

It will be understood from the preceding explanation that the clutchsleeves are not engaged until quite at the end of the inward run of thecarriage, and consequently if the reserve is too great at'the momentwhen the roller 19 of the special guide 91 has caused the pawl 24- todescend on the teeth of the ratchet the clutch sleeves remain in engagement until, if it is necessary, the lever 29 has caused the chainsto act which connect the axle of the ratchet wheel 25 to the operatingshaft 15 of the screw 9 of the quadrant. sleeves commences when thecarriage has run out about 25 centimeters.

The ratio of the gears 46 and 48 being properly established, if aninward run of the carriage takes place with too great a reserve ofthread, the nut of the screw of the quadrant will at the next inward runoccupy a suitable position upon this screw and communicate to thespindles 5 the number of revolutions strictly necessary to absorb thelength of thread produced during the outward run of the carriage.

The parallelogram motion formed by the levers 20, 22, 29 and the rods23, 26 (Fig. 11) is perfectly balanced, so that the coiled spring 28 isof very small section. The function of this spring is to keep theparallelogram motion in its position of rest, shown in Figs. 2 and 11,when the two clutch sleeves are out of engagement. The force necessaryto actuate, or rather to cock or set the mechanism of the thread reservecorrector only amounts to the tension of the spring 28, resulting fromthe higher or lower position of the roller 19; this force isinsignificant and in no way detrimentally affects the pressure which thecounter-faller 1 needs to have for stretching the threads during the endof the winding up 01' copping. The parallelogram motion above describedmay in certain cases be arranged as shown by Figs. 12 and 13. In thiscase the rocking movement of the lever 29, 29 is obtained by arrangingthe lever 22 (here des ignated 22) on the end of the axle 53, theratchet wheel 25 (here designated 25") being then fixed on the clutchsleeve 52 (Fig. 13) in place of the toothed wheel 51 which is dispensedwith as well as the wheel 12 of the first arrangement.

The end of the curved lever 20 terminates in a pivot 83 on which isjointed the rod 23 which is connected to the lever 22 by a movable piecev32'. The amplitude of oscil- The disengagement of the clutch lation ofthe lever 22 is increased or diminished by placing the piece 32 in oneor other of the holes 84 formed in the end 22 of the lever 22. In thisarrangement the spring 28 which returned the parallelogram motion to itsposition of rest is replaced by a counterweight 87 fixed to the end 22of the lever. The shoulder of the pivotal axis of this lever has in thiscase a special form shown in Fig. 12, tov obtain an adjustable restabutment 88. A stop pin 87 placed at the end '22 of the lever 22prevents the weight 87 from falling if the locking screw which fixes itbecomes loose.

The spirals or convolutions are more numerous at the commencement of theformation of the cop, when the winding up is taking place on the tubes,than toward the end of the lift; they are seven to eight in numher atthe commencement and their number is reduced to five or six at the end.To facilitate these differences in the number of convolutions on muleswhich possess no declivity at the extreme end of the bar the specialguide 91 is made adjustable, being pivoted at 92, and displaced by meansof the wing bolt 93, which connects it to one branch of the bell cranklever 94:. This 'bolt 93 has a threaded part 93 screwed into thescrew-threaded branch 91 and a neck 93, which passes freely through 9 1and has a ring fastened in its end. By turning the bolt by its wings theupper branch 91 is displaced.

When the cop is begun the branch 9% forms with the counter-faller leverguide 91 a closed hinge, and the roller 19 occupies a lower positionthan when the cop is approaching completion, at which time the hingebetween 9% and 91 will be open about 3 millimeters, as shown in Figs. 2and 5, the roller 19 being then raised about 8 to 10 millimeters. Theleft hand arm 20 of the lever 20 being thus actuated less rapidly by theroller 19, the reserve of thread (which has been previously defined)will thus be greater at the commencement of the formation of the copthan toward the end, and will permit of a greater number ofconvolutions.

So far only the principal portion of the reserve corrector has beendescribed, that is to say the means which cause the attachment 8 of thechain 7 to descend automatically when the counter-faller 1 is too high.

For the complete understanding of the corrector, I will now proceed todescribe the arrangement which causes the chain attachment nut 9 to riseon the screw 8 this mechanism, which is shown separately in On the shaft96 of the faller 17, at the right (see Fig. 3) is fixed a lever 100(Figs. 5 and 14) ending in a slot in which is a roller 101. Below thisroller 101 is a compensating bell crank lever 102 pivoted on atrunnion103 fixed to the bracket of the carriage. The roller 101 is adapted torock the arm 104 of the lever 102 and a slot 105 (Fig. 2) is formed inthe other arm of the lever 102 to receive a trunnion 129 which supportsthe end of a chain 109.

On the shaft 3 of the counter-faller 1 is fixed the lever 95 whichcarries at its end .a swivel connection 106, through which passes ascrew threaded rod 107 on which is screwed a wing nut 108. The chain 109which connects the trunnion 129 to the rod 107 supports a roller 110carried by a fiat bar 111 which slides in a support 112 fixed on thefront of the assemblage frame 128 of the two half carriages. On thissupport 112 is fixed the arbor 113 of a ratchet wheel 114 keyed on theboss or bush of a chain wheel 115. The bar 111 carries at its lower enda pawl 116 (Fig. 2) adapted to engage in the teeth of the ratchet 114and prevent the rotation of the latter and of the wheel 115.

An endless chain 117 disposed in the bottom of the frame of the spinningmule goes from the stretcher 127 (Fig. 1) to the wheel 119, passing overthe upper part of the toothed wheel 115 and under the roller 120. On theboss of the toothed wheel 119 is keyed the toothed wheel 121 connectedby the'chain 122 to the wheel 123 fixed on the shaft 15.

When the carriage is at the end of its outward run, and before thecommencement of its inward run, the shaft 96 of the faller 17 40 turnsin the direction of the arrow 152 (Figs.

2 and 5) to lower the faller 17 so as to conduct the thread on to thetubes carried by the spindles 5, this movement being imparted by theusual faller gear (not shown).

This movement effects the displacement in the same direction of thelever 100, the end of which supports the roller 101 which moves the arm104 of the compensating lever 102. A tooth 130 east on the left handedge of this arm 104 of the lever 102 is at the moment of copping orwinding up in contact with the rack teeth of a curved lever 131 pivotedon a trunnion 132 fixed to the bracket 40. WVhen the faller 17 rises inthe direction 133 (Fig. 5) to guide the threads on to the tubes, theroller 101 quits the lever 104 which remains engaged or retained. Thecompensating lever 102 preserves this retained position for the wholeduration of the winding up (or inward run of the carriage).

The chain 109 connected to the adjustable rod 107 is attached to theother end of the lever 102 at 129.

The length of a small chain 134 fixed to the locking screw of the lever100 and connected to the free end of the rack 131 is regulated in uchmanner that the teeth of this rack become disengaged from the tooth 130when, on the carriage having completed its inward run, the faller 17 hasrisen to its position of rest.

As the faller 17 descends (as operated by the usual means) to a less andless extent in proportion as the cop forms, it follows that the roller101 will push the arm 104 to a less and lessdistance in the teeth of therack, the result of which will be to cause 102 to occupy a lower andlower position proportionately to the increase in size of the cops, andconsequently the progressive lengthening of the chain 109. It istherefore necessary that the counter-faller 1 shall occupy a lower andlower position in order to raise the guide 95 sufliciently to bring thecatch 116 into engagement with the ratchet wheel 114.

The end 105 being heavier the compensating lever 102 rocks until 104comes against the stop or abutment 135, Fig. 5, (formed by the head of ascrew); this is the position which it occupies at each of the outwardmovements of the carriage at 102, (Fig. 2) lengthening still more thechain 109.

It has been above explained that it is the position of thecounter-faller 1 which shows whether there is an excess or a lack ofreserve thread. VVhen this reserve of thread begins to diminish, thecounter-faller 1 is in such a position on the final return of thecarriage, that the roller 19 of the guide 91 of the counter-fallercannot come in contact with the lever 20 and rock the same. When a liftis begun, after a few return runs of the carriage, when the attendantsees that the reserve of thread diminishes too much he" adjusts thelength of the chain 109 by acting on the wing nut 108 of the rod 107. sothat by raising the roller 110 the catch 116 comes into engagement withthe ratchet wheel 114. This prevents the rotation of the wheel 115 andcauses the displacement of the chain 117 in the direction of the arrow125 (Fig. 2). The eifect of this is to rotate the wheels 119, 121 and123 and also the bevel pinions 49 and 50 (Fig. 7). The screw 9 of thequadrant 6 then turns in the proper direction to cause the nut 8 towhich the chain 7 of the mule is attached to rise.

When the cores of the cops are finished, the attendant withdraws thesmall chain 109 of the roller 110, and then only the upper mechanism isin action. In proportion as the cops increase in size the reserve ofthread must diminish; the attachment nut 8 of the chain 7 must thereforedescend little by little. This result is obtained by the arrangementwhich has been previously described. This arrangement moreover re- Iters Patent is 1. In a spinning mule the combination with the quadrantscrew and nut and with the carriage and counter-faller, of atransmission mechanism for operating the quadrant screw and drivingmeans therefor, the

latter comprising a part arranged to be encountered by a part connectedwith the counter-taller at the end of the inward run when thecounter-taller is too high, said mechanism adapted in such case to turnthe quadrant screw in such direction as, to cause its nut to descend. i

In a spinning mule the combmation with the quadrant screw and nut andwith the carriage and counter-taller, of a transmission mechanism foroperating the'quadrant screw and drivingmeans therefor, the lattercomprising a part arranged to be encountered and movedby a partconnected with thecounter-faller at the end of the inward run when thecounter faller is too high, and comprising a ratchet which in such casemoves idly, and a spring which is put under stress by such movement,whereby at the beginning of the outrun of the carriage, upon theseparation of such parts the spring acts throughthe ratchet to operatesaid mechanism, and the mechanism adapted when so operated to turn thequadrant screw in such direction as to cause its nut to descend.

3.. In a spinning mule the combination with the quadrant screw and nutand with the carriage and counter-faller, of a transmission mechanismforoperating the quadrant screwand driving means therefor, the lattercomprising a part arranged to be encountered and moved by a partconnected with the counter-taller at the end of the inward run when thecounter-faller is too high, and comprising a ratchet adapted to moveidly during such displacement and actively at the beginning of theoutrun of the carriage whereupon to transmit motion through saidmechanism to said screw and adapted to turn the latter in such directionas to cause its nut to descend.

4. In a spinning mule the combination with the quadrant screw and nutand with the carriage and counter-taller, of a transmission mechanismfor operating the quadrant screw and driving means therefor, the lattercomprising a part arranged to be encountered and moved by a partconnected with the counter-faller at the end of the inward run when thecounter-faller is too high, the mechanism comprising also aparallelogram motion, one arm of which carries the piece thus acted onby the counter-faller and the second arm thereof adapted to communicatemotion to said transmission mechanism, a ratchet and pawl through whichsaid motion is communicated, and aspring engagingsaid second arm.

In a spinning mule'the combination with the quadrant screw and nut andWltll the carriage and counter-faller, of a trans mission mechanism foroperating the quad rant screw and driving means therefor, the lattercomprising a part arranged to be encountered by a part connected withtherant screw and driving means therefor, the

latter comprising a part arranged to be encountered and moved by a partconnected with the counter-faller at the end of the inward run when thecounter-faller is too high, said mechanism adapted in such case to turnthe quadrant screw in such direction as to cause its nut to descend, andsaid transmission mechanism comprising a clutch and clutch-operatingmeans for rendering the transmission operative or inoperative.

7. In a spinning mule the combination with the quadrant screw and nutand with the carriage and counter-faller, of a transmission mechanismfor operating the quad rant screw and driving means therefor, the lattercomprising a part arranged to be encountered and moved by a partconnected with the counter-faller at the end of the inward run when thecounter-faller is too high, said mechanism adapted in such case to turnthe quadrant screw in such direction as to cause its nut to descend, andsaid transmission mechanism comprising a clutch, and clutch-operatingmeans comprising a tappet cam, its cam portion operating to engage ordisengage the clutch and being itself displaced by engagement with thecarriage, whereby after the beginning of the outrun of the carriage thetappet may be displaced and the clutch released.

S. In a spinning mule the combination with the quadrant screw and nutand with the carriage and counter-faller, of a transmission mechanismfor operating the quadrant screw and driving means therefor, the lattercomprising a part arranged to be encountered and moved by a partconnected with the counter-taller at the end of the inward run when thecounter-faller is too high, said mechanism adapted in such case to turnthe quadrant screw in such direction as to cause its nut to descend, andsaid trans; mission mechanism comprising a clutch, and clutch-operatingmeans comprising a tappet cam formed as a slide plate having a camportion for communicating movement to the clutch and having an abutmentengaged during the outrun of the carriage to displace the slide plateand disengage the clutch.

9. In a spinning mule the combination with the quadrant screw and nutand with the carriage and counter-faller, of a transmission mechanismfor operating the quadrant screw and driving means therefor, the lattercomprising a part arranged to be encountered and moved by a partconnected with the counter-faller at the end of the inward run when thecounter-faller is too high, said mechanism adapted in such case to turnthe quadrant screw in such direction as to cause its nut to descend,said transmission mechanism comprising a ratchet wheel adapted to turnfreely during the inward run of the carriage but engaging during itsoutward run.

10. In a spinning mule, the combination with the quadrant screw and nutand with the carriage and counter-faller, of a transmission mechanismfor operating the quadrant screw and driving means therefor, the lattercomprising a pivoted arm connected with the counter-faller and a movablepart arianged to be encountered thereby at the end of the inward runwhen the counterfaller is too high, said pivoted arm having adjustingmeans whereby to vary its elevation so that it may be raised as the copsin,- crease on the spindles.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

RENE ABEL DUPONT.

Witnesses:

CHAs. P. PRESSLY, RENE BARDY.

Copies 01' this patent may be obtained for five cents each, byaddressing the Commissioner of Patents. Washington, D. G.

